Custom Optical Wedges & Prisms – PFG Optics
The term “optical wedge” refers to any shallow angle between two plane surfaces of a window. This wedge may range from a few millionths of a degree of perfect parallelism to as much as three degrees of angle. Even though high-precision optics, such as optical flats, may be lapped and polished to extremely high levels of parallelism, nearly all optics with parallel faces have some slight wedge. This margin of error is usually listed in minutes or seconds of arc. Windows manufactured with an intentional wedge are often referred to as wedge prisms, and typically come with wedge angles of one, two, or three degrees. Many applications exist for optical wedges, including laser-beam steering, rangefinding and variable focusing. Wedge prisms can be used individually to deviate a laser beam a set angle, or two wedge prisms can be used together for beam steering applications.
Custom optical wedges are used to reflect or refract light at precise angles, our prisms and wedges are made from any optical glass, filter glass or fused silica and can be coated to your exact specifications.
PFG Optics is a custom manufacturer of precision flat-surfaced, parallel and custom optical wedges specializing in optics polishing, continuous pad & pitch polishing, CNC machining and laser machining. High volume to prototype products include wafers, windows, filters, mirrors, optical flats, wedge prisms, light pipes, plate beamsplitters, and coatings.